EP 4029071 A1 20220720 - POSITIVE ELECTRODE ACTIVE MATERIALS FOR A LITHIUM-ION SECONDARY BATTERY
Title (en)
POSITIVE ELECTRODE ACTIVE MATERIALS FOR A LITHIUM-ION SECONDARY BATTERY
Title (de)
POSITIVELEKTRODENAKTIVMATERIAL FÜR EINE LITHIUM-IONEN-SEKUNDÄRBATTERIE
Title (fr)
MATÉRIAUX ACTIFS D'ÉLECTRODE POSITIVE POUR UNE BATTERIE SECONDAIRE AU LITHIUM-ION
Publication
Application
Priority
- US 201916569116 A 20190912
- IB 2020058445 W 20200911
Abstract (en)
[origin: WO2021048796A1] Provided is a positive electrode active material for a lithium-ion battery, the positive electrode active material including a blend of a doped lithium manganese iron phosphate (dLMFP) according to the formula: LiMnxFeyM1-x-yPO4, wherein 0.9<x+y<1; and M is one or more selected from the group consisting of Mg, Ca and Ba with one or both of a lithium nickel cobalt manganese oxide (NMC) compound having a Ni content greater than 0.6 relative to a total amount of metals other than Li and a lithium nickel cobalt aluminum oxide (NCA) compound. In particular, provided is a blend at a weight ratio of dLMFP to NMC and/or NCA (i.e., dLMFP : (NMC+NCA)) of >70:<30, such as 75:25, 80:20, 85:15, 90:10, etc.
IPC 8 full level
H01M 4/36 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 10/052 (2010.01)
CPC (source: CN EP US)
C01B 25/45 (2013.01 - CN EP); C01G 53/42 (2013.01 - EP); C01G 53/50 (2013.01 - CN EP); H01M 4/364 (2013.01 - CN EP); H01M 4/505 (2013.01 - CN EP); H01M 4/525 (2013.01 - CN EP US); H01M 4/5825 (2013.01 - CN EP US); H01M 10/052 (2013.01 - EP); H01M 10/0525 (2013.01 - CN US); H01M 10/0563 (2013.01 - US); H01M 10/0568 (2013.01 - US); C01P 2002/52 (2013.01 - EP); C01P 2002/54 (2013.01 - EP); C01P 2006/40 (2013.01 - EP); H01M 2004/021 (2013.01 - CN); H01M 2004/028 (2013.01 - CN US); H01M 2300/002 (2013.01 - US); Y02E 60/10 (2013.01 - EP)
Citation (search report)
See references of WO 2021048796A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021048796 A1 20210318; CN 114375515 A 20220419; EP 4029071 A1 20220720; US 11804601 B2 20231031; US 2021083289 A1 20210318
DOCDB simple family (application)
IB 2020058445 W 20200911; CN 202080063865 A 20200911; EP 20775076 A 20200911; US 201916569116 A 20190912